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.338 lapua improved 40degree

 
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  #8  
Old 03-18-2010, 09:48 AM
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Join Date: Aug 2005
Posts: 558
Re: .338 lapua improved 40degree

I agree with most of what LTLRanger has said, it is not possible to get 3200fps with this round.
I have been shooting the 338 Lapua AI since 2004-2005 and with a 36" barrel it was shooting the 300gr SMK at 3050fps, the barrel was cut back to 33" and it now clock's 2975fps.
RL25 has been the powder of choice.
UB
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  #9  
Old 03-21-2010, 12:52 PM
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Join Date: Jun 2007
Location: Fredericksburg VA
Posts: 4,120
Re: .338 lapua improved 40degree

2950 with a 30" barrel is reasonable.

Here is mine. Shooting h1000 at 2960.

Snake 2- 338 Lapua Ack Imp

BH
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  #10  
Old 03-22-2010, 11:19 AM
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Join Date: Aug 2008
Posts: 51
Re: .338 lapua improved 40degree

Thanks for the reply from Long time long Ranger. do u have any input about the snipetac or the allen magnum versions. thanks
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  #11  
Old 03-22-2010, 02:08 PM
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Location: USA
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Re: .338 lapua improved 40degree

Quote:
Originally Posted by BountyHunter View Post
2950 with a 30" barrel is reasonable.

Here is mine. Shooting h1000 at 2960.

Snake 2- 338 Lapua Ack Imp

BH



A 300 grainer at 2900+ is serious medicine indeed
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  #12  
Old 03-22-2010, 09:41 PM
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Join Date: Jan 2009
Location: kalispell, end of earth, mt usa
Posts: 72
Re: .338 lapua improved 40degree

3,000 fps if it's a very fast barrel, but count on about 2,950. that answers your origional question, now some opinion

i can tell you, for a fact, 2,982fps with the 300smk, at 3,200 feet, will land predictably at over 2k..... why did you want or need it to do 3,200 fps? i can also tell you, that combo will break a deer at 1,589 yards...

numbers are cool, but accuracy kills, or wins, dependeing on the sport. i once, when i was new, thought speed was everything too. i managed to get into the 700 yard club back then, with a long tubed 30-378. and then , it hit me, i have to crank these knobs on every shot past 400 yards anyway, hmmmmm....

do as you wish, but i think you would be quite happy with a 338 lap imp., the brass is top notch and lasts forever(ish).

good luck with whatever you pick,
tom
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  #13  
Old 04-14-2010, 09:25 AM
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Join Date: Apr 2010
Posts: 10
Re: .338 lapua improved 40degree

Quote:
Originally Posted by 300spanker View Post
a friend of mine said 100to102 grains of retumbo maybe a little more??
Im new, but im sending 300grn smks outa my 338 RUM at 3000 fps using 100 grains of retumbo. I would hope that you would be capable of more.
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  #14  
Old 04-14-2010, 11:25 AM
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Join Date: Aug 2008
Posts: 51
Re: .338 lapua improved 40degree

how long is your barrel. most guys can only get 2800fps out of a 338 ultra.
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